obscuration noun.
[ɒbskjʊ'reɪʃ(ǝ)n] L15.[Latin obscuratio(n-), from obscurat- pa. ppl stem of obscurare: see OBSCURE verb, -ATION.]The action of making something obscure, dim, or dark; the process of becoming obscure; a dimmed state or condition;
Astronomy occultation.
■ A. C. Gimson Weak accent in OE led to the obscuration of short vowels. [TahlilGaran] English Dictionary ▲